From US 277 at Christoval, southeastward and southward to SH 29, a
distance of approximately 27.9 miles. (Tom Green and Schleicher
Counties) Extended southward approximately 6.3 miles to end of RM
2479; R.M. 2479 cancelled and combined adding approximately 7.0 miles.

From US 277 at Christoval, southeastward and southward approx. 27.8 miles
to US 190. (Tom Green and Schleicher Counties) Redescribed due to portion
of SH 29 being redesignated as US 190; effective 01/01/1978.